Patch pushed after pre-approval by Harald on Bugzilla.

Fortran: Fix ICE in gfc_trans_pointer_assignment [PR113956]

2024-04-09  Paul Thomas  <pault@gcc.gnu.org>

gcc/fortran
	PR fortran/113956
	* trans-expr.cc (gfc_trans_pointer_assignment): Remove assert
	causing the ICE since it was unnecesary.

gcc/testsuite/
	PR fortran/113956
	* gfortran.dg/pr113956.f90: New test.

Paul